My OpenHaptics Tutorials:
Haptic device is a mechanical device that mediates communication between the user and the computer. It makes it possible for users to touch and manipulate virtual objects in virtual environment. In my development, we can feel the sense of touch during the cutting simulation of a 3D tooth model in 3D virtual environment.
OpenHaptics software development toolkit is used with haptic devices (e.g. PHANToM Omni) in order to simulate the feedback force or tactile sensations to the use.
Actually, Haptics is very specific field, not for everyone, but trust me its very interesting and it has a lot of fun.